电动多叶光栅通讯部分的FPGA实现-电子与通信工程专业论文.docxVIP

根据放疗的 4D 治疗发展趋势，本文还进行了呼吸信号的采集和 预测，进行了预测算法的研究，取得了不错的效果。此外根据实际需 要给产品增加了远程更新程序的功能，以便于给用户升级维护。 最后实际产品测试和使用都非常稳定，取得的控制方案令人满 意。近年来投放市场，产品的精度性能和稳定性非常好，取得了非常 高的知名度，深受医院的欢迎。 关键词：电动多叶光栅叶片（DMLC），FPGA，NIOS，DSP DMLC communication part of the FPGA ABSTRACT In the radiation therapy technology, with the development of 3D conformal radiotherapy and intensity modulate radiotherapy, dynamic multi-leaf collimator is an indispensable equipment. It is a Precision radiotherapy Large-scale medical equipment, it make radiation therapy of the general radiation from the auxiliary entered a new stage of precision radiotherapy, It is all controlled by computer, receive and implement the plan from TPS, drive leaves in place to shelter-ray, instead the traditional lead and manually grating, but also greatly shortened the patients’ time, welcomed by doctors. Due to the high cost of foreign equipment, Greatly limited its development. Research on the subject through practice, Developed a fully new autonomous DMLC, It has the characteristics of large size, stability, easy to maintain. This paper introduces the old DMLC architecture, the design use several FPGAs, connected the board with the socket,so there is a problem of the bad connection. And the capacity is so small that can’t expand. And the old way of control is one control panel to control both sides of the leaves, But he needs of the new requirements is both sides is movable, So the communication can not be PCB, but through the soft-wire connection. We have adopted a distributed system,the two sides communication with each other through LVDS, each processor is responsible for their own control algorithms. As the load of each processor is only half of the previous, Therefore, the driven leaves can be increased to more than double the previous.I am responsible for the development of the PC control software and FPGA driver. Focuses on the FPGA communication module, Use the idea of hardware and software co-design module to partition the